[jocko]

Sorry. There's no guarantee it's a swb truck - could be shortened frame or a cab swap onto a swb frame, shortened bed, added real swb bed to a shortened frame, who knows. I'm not at home or I'd crosscheck the gvwr for a swb c10 - don't recall if it's the same as the lwb. I don't see any other way to verify it was originally a swb truck without a SPID unless you inspect it.